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Updated: May 21, 2026

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Published on: June 29, 2013
[Perinatal aspects, growth and feeding of infants born small for gestational age]
M Biosca Pàmies1, G Rodríguez Martínez, M P Samper Villagrasa
1Departamento de Pediatría, Radiología y Medicina Física, Universidad de Zaragoza, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España.
Insights
Infants born small for gestational age (SGA) face increased risks due to maternal factors like lower weight gain and smoking. These SGA infants show persistent smaller size at six months, with lower breastfeeding rates.
Area of Science:
- Pediatrics
- Neonatology
- Public Health
Context:
- Small for gestational age (SGA) infants are at higher risk for adverse health outcomes.
- Understanding the characteristics and growth patterns of SGA infants is crucial for early intervention.
Purpose:
- To describe the perinatal and socio-cultural characteristics of SGA infants.
- To analyze the growth and dietary patterns of SGA infants during the first six months of life.
Summary:
- SGA infants were born to mothers with lower pregnancy weight gain, shorter gestation, and higher rates of cesarean delivery and smoking.
- SGA infants remained smaller throughout the first six months, with similar weight gain but lower breastfeeding prevalence at four months.
- No significant social or cultural differences were observed between SGA and non-SGA groups.
Impact:
- Identifies key risk factors associated with SGA births.
- Highlights the persistent growth deficit and lower breastfeeding rates in SGA infants, suggesting potential long-term health implications.
- Informs clinical practice and public health strategies for managing SGA infants.
Introduction:
Being born small for gestational age (SGA) has short and long term risks. The aim of this study was to describe perinatal and socio-cultural characteristics, and the pattern of growth and diet of SGA infants during their first 6 months of life.
Materials And Methods:
Anthropometry and diet were evaluated during six months in a representative sample of 1596 newborns the population of Aragon (Spain).
Results:
Mothers of SGA (N=94) infants gained less weight during pregnancy (10.5±5.8 vs 12.0±5.07 kg, P=.012), gestational age at birth was lower (37.84±1.7 vs 39.06±1.6 weeks, P<.001), and the probability of cesarean delivery was higher (37.2% vs 20.5%, P=.001). The height of the mother was lower in the SGA group (1.61±0.58 vs 1.63±0.06 metres, P=.004), but their body mass index was similar. No differences were found between groups in social or cultural aspects. Mothers of SGA infants smoked more during pregnancy (32.3% vs 18.5%, P=.003) (RR = 1.92; 95% CI; 1.31 to 3.02). Infants born SGA remained smaller during the first 6 months of life, and the monthly weight gain was similar to the rest. In the SGA group, the prevalence of breastfeeding was lower at 4 months of age (54.9% vs 68.2%, RR = 0.58, 95% CI; 0.38 to 0.89).
Conclusions:
Infants born SGA are more likely to converge a number of characteristics that must be considered together because they may lead to health risks. SGA do not show a rapid recovery pattern of postnatal growth, and their smaller size persists at six months.
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